OSHA Accident Investigation · Summary #14253132
KNEE,CONCRETE FORM WORK,INSTALLING,WORK RULES,CONSTRUCTION,TRENCH,SHORING,SLOPING,BURIED,CAVE-IN
Event description
Employee injures knee in trench cave-in
Investigation abstract
On January 30, 1990, two workers were in a 7 to 8 ft deep trench installing a bu ee weeks of work. No shoring or sloping had been provided for the vertical trenc h walls. lkhead for a grade beam concrete pour. Employee #1 was in a squatting position w hen the west wall of the trench collapsed. He tried to jump up and out of the tr ench, but the shoe on his right foot caught on a reinforcing steel pier mat. The falling clay earth covered Employee #1's right leg to just above the knee, and forced his foot against the mat so that he couldn't move it. His left leg was ra ised above the debris and was not trapped. Employee #1 was taken to a hospital w here his injury was diagnosed as fluid on the right knee and he was released. Em ployee #1's leg was put in a removable cast and he is expected to lose about thr
Victim
-
#1 Non-hospitalized injury Age 28 M
- Nature of injury
- 3
- Part of body
- 15
- Event type
- 1
- Source
- 12
- Occupation code
- 869
- Human factor
- 17
- Environmental factor
- 6
- Task assigned
- 1
Codes shown verbatim from OSHA's accident-investigation database. A human-readable decoder is coming in a future release once the accident_lookup2 dictionary is loaded.